Mobile power supply



FIG. 1 is a front, right, top perspective view of a mobile power supply;

FIG. 2 is a front, right, bottom perspective view thereof;

FIG. 3 is rear view thereof;

FIG. 4 is an exploded right side view thereof;

FIG. 5 is an exploded top view thereof; and,

FIG. 6 is an end view of a rear portion thereof, shown separated for ease of illustration.

Brackets in FIGS. 4 and 5 form no part of the claimed invention. 

CLAIM The ornamental design for a mobile power supply, as shown and described. 